Sink structure and method of assembly



A. A. DANIELS SI NK STRUCTURE AND METHOD OF ASSEMBLY 3 SheetsSheet 1Filed July 24, 1958 .ZEZZEZZZQF Nov. 24, 1959 A. DANIELS 2,933,733

INK STRUCTURE AND METHOD OF ASSEMBLY Filed July 24, 1958 3 Sheets Sheet2 l7 A/berf A. flamels b aw zzw; Zia 2W I A. A. DANIELS f 2,913,733

SINK STRUCTURE AND METHOD OF ASSEMBLY 5 Sheets-Sheet 3 J Nov. 24, 1959 IFiled July 24, 1958 ha/@9 gdw 'SINK STRUCTURE AND NIETHOD OF ASSEMBLYAlbert A. Daniels, Highland Park, Ill.

ApplicationJnly 24, 1958, Serial No. 751,598

12 Claims. (Cl. 4--187) This invention relates generally to a sinkconstruction, and more specifically to a self-rimming sink having animproved fastening means incorporated therein,

This application is a continuation-in-part of my application entitledSink Structure and MethodoftAssembly .Serial No. 653,317, filed April17, 1957,;and. now

abandoned.

Sinks installed in counter tops have been ,provlded .with a rim assemblyaround the sink to close the joint between the counter top and the sink.The rims whlch have been used are both decorative and functional.Certain rims of this type providea sanitary .seal and certain rims ofthis type support or clamp the sinkm position. A disadvantage to thistype of. structure is has not been uncommon to leave a rather thin andweak section of counter top material at the front andback edge of thesink. The material being brittle, the likelihood of cracking thematerial is substantial, particularly when an inexperienced workman,such as a householder, is installing a sink in such a counter.

Furthermore, the opening for the bowl portion of prior sinks must bepositioned with accuracy since the bowl portion of the sink or its edgesmustalign closely with respect to the edge of the opening, and of coursealso accurately with respect to the plumbing-with which the sink is tobe associated. Normally theaposition of the plumbing is fixed withrespect to the counter, and determines the, exact location of the sinkvWlthjl'eSpeCt to the counter. Accordingly, considerable1sk'ilLandexperience is necessary to properly position :the topening'for the bowl portion of the sink with thezrequisite accuracy. An errorin locating this opening. necessitates scrapping of the counter top andthe'provision' ofa new counter top. Therefore, to avoid such-ran error,time-consuming accuracy is requiredevenrofthe highly skilled craftsmanemployed in the task.

As a solution for these problems, I have provided 'a self-rimming sinkwhichmay be installed even though United States PatentO ice .simple andfoolproof method of assembling a sink to a the bowl openingin thecounter is inaccurately located.

Thus, a sink constructed inaccordance with my 'invention may beinstalled by workmen having less skill and experience with a somewhatlesser risk of loss arising from the preparation of the counter top forreceiving thesink.

A further feature of my self-rimming sink is that it incorporates anovel fastening mechanism wherein cam means carried on a shaft arerotatedto engage the underside of the counter topzthereby clamping thesink thereagainst. having the .novel fastening :means Patented Nov. :24,13-959 disclosed herein are further advantageousin thatrthe meansandmode-of installation and attachment isrequally .adaptable to be usedwith sinks having irregular, sculptured, orlcontoured. shapes or forms.

Accordingly, it is an object of this invention, to pro- :vide aself-rimming sink having means associated therewith for attaching thesink to the counter.

Astill further object of my invention is the 'provision of aself-rimming sink structure which permits the use of irregular,sculptured, or contoured shapes-or .edge of theopening do not afiect theinstallatiomof th sink.

vYet another object is the provision. of a sink which may be installedin a counter top where the opening in the counter top may be so locatedas to not; leave any relatively weak sections immediately adjacent tothe sink. ,7 .,A still further object is the provision of means 'forholding a self-rimming sink ,securelyagainst the counter top.

Yet another object is the provision of an extremely counter. l.Manyother advantages, features and additional objects of the presentinvention will become manifest to those versed in the art upon makingreference to the details of description and the accompanying sheets ofdrawings in which several sinks incorporating the :principles of thepresent invention are shown by Way of illustrative example.

, 0n the drawings:

Figure 1 is a perspective. view of asink constructed in accordance withmy invention, with a portion of the fastening means omitted;

.Figure 2 is an enlarged view taken along line 2 2 of Figure 1, andincluding the omitted parts and a counter top;

Figure 3 is a view taken along line 33 of Figure 2;

Figure, 4 is generally similarto Figure 2, but illus- ,trates amodifiedform of the invention;

Figure 5 is a perspective view of a sink constructed inaccordance-withmy invention, and provided with" a second modified form of the fasteningmeans ofmy invention; A .Eigurefi is an enlarged view taken along iline66 ofaFigure 5', andalso along line 6-43 of Figure '7, and includingcertain omitted parts and a counter top;

- .Fi gure 7;is a view.along line'7'7 of Figure 6;

.:Figure 8 shows in perspective a sink constructedin accordance :with myinvention and having an irregular shape; and 7 ;Figure9;shows yetanother embodiment of my inventionwherein aself-rimming sink isprovidedwtih a contelurtedzform.

As shown on the drawings:

'lfiherprinciplesof this invention areparticularly usefulwhen-,enibodied in-a self-rimming sink having"-means forsecuring-.the-sink to a-counter top.

,qReferringito F-igures l and 2, a sink constructed in accordance withthe principles- 0f my invention is"generally indicated at 10. The sink10 includes one or more-bowl portions 11, a broad ledge 12 integralwiththe-upper parto'fthe bowlportion 11, and a rim portion -13 integralwith-theouter edge of the ledge 12, as best shown in Figure' 2. The rimportion 13 includes .a lip I -14= iwhich is' downwardly directed, i.e.'directed toward an upper surface l8-of acounter 20,

The counter 20 has an opening 21 which receives the bowl portion 11therein. Preferably, the width of the ledge should be as large as ispracticable so that a maximum tolerance to the dimensions of the counteropening 21 may be obtained. The ledge 12 extends flatwise over the uppersurface 18 of the counter 20, thereby overlapping a portion 22' of thecounter. When the size of the bowl opening 21 is substantially equal tovthe, size of the bowl, the ledge 12 substantially completely overlapsthe counter 20. However, the size of the opening 21 is not critical, andhence ordinarily only the outer portion 17 of the ledge 12 will overlapthe counter 20 in sink supporting fashion. Thus it is necessary for theledge 12 to at least partially overlap the counter 20, such as at 22. Alower edge 15 of the lip 14 extends to a lower level than does the loweredge or face 19 of a sink supporting portion 22 of the ledge 12.Accordingly, in order that both the lower edge 15 of the lip 14 and thelower edge 19 of sink supporting portion 22 supports the sink 10, it ispreferable that the lip 14 be resilient. Thus the lip 14 may provide notonly additional support for the sink, but comprises a resilient sealwhereby foreign matter may be excluded from entering the interfacebetween the ledge 12 and the counter 20.

Means are also provided to hold the sink in position against the counter20. These means act on the counter overlapping portion 22 as well as onthe counter 20. In a preferred form, a sheet of pressure-sensitivematerial 23 is positioned between the sink supporting portion 22 and thecounter 20. The material '23 may comprise paper, e.g. a crepe paper,which paper has a pressure-sensitive adhesive on both its upper andlower surfaces. Thus, when the sink is pressed into position against thepressure-sensitive material 23, as by hand, the sink 10 is securely heldin position by the material 23 against the counter 20. Where thepressure-sensitive material 23 is applied continuously along the ledge12, the material also serves as a seal to keep foreign materials fromgoing under the ledge 12.

It is also preferred that additional holding means be provided. Thesemeans include a downwardly directed portion of flange 24 which isfixedly attached or bonded, as by welding, to the undersurface 19 of theledge 12, here shown as being attached under the rim portion 13 of theledge 12. For each of the flanges 24, a hole 25 is provided in thecounter 20, through which the downwardly directed flange 24 extends. InFigure 2, the downwardly directed portion 24 comprises a flanged memberwhich 'has a lower end 26 which is apertured at 27. A shaft 28 extendsthrough the aperture 27 and has a portion 29 which is adapted to receivea driving or turning tool. For example, the portion 29 may comprise apair of spaced parallel flat surfaces for receiving a wrench. A pair ofearns 30 and 31 is carried on the shaft 28, one on each side of theflanged member 24. Each of the cams 30, 31 has a lobe 30', 31respectively and may comprise any convenient material, pressed metalbeing preferred. If desired, serrations or knurling may be provided onthe outer surface of the earns 30, 31, such as at 31a to increase theirfriction. The cam 30 may be fixed to the shaft 28 while the other cam 31must be removable for installation.

To install the sink 10, the opening 21 is made in the counter 20.Thereafter, a plurality of holes 25, spaced outwardly from the opening21, are cut in the counter 20, such as by a saber saw, each to receiveone of the downwardly directed flanges 24 therethrough. The sink 10 isthen positioned on the counter 20 with its bowl portion 11 in theopening 21 and with the downwardly directed flanges 24 extending throughthe openings 25. It is to be understood that as many of the openings, 25and downwardly directed flanges 24 are provided as may be necessary. Ifa pressure-sensitive material 23 having two adhesive sides be used, ofcourse I 4 that material is placed on the counter surface 18 or on thelower face 19 of the ledge 12 before the sink 10 is pressed intoposition. Thereafter, a wrench is applied to the driving portion 29 ofthe shaft 28 to rotate the earns 30, 31 so as to drive the cam lobes 30,31 into the under surface 16 of the counter 20. The friction between thecounter 20 and the cams 30, 31 locks the earns 30, 31 in position. Thusthe turning of the shaft 28 both draws down the fastening means andlocks the cam position.

Figures 4, 5, 6, and 7 illustrate other embodiments of means for holdingthe sink 10 in position. It is to be understood that one of these may beused in place of the mechanical structure shown in Figures 2 and 3,either with or without the pressure-sensitive material 23. It is notintended to limit the patent to the specific forms disclosed herein, butrather they are disclosed to show the scope of my invention.

Accordingly, Figure 4 includes a means for holding the sink 10 inposition which means has a downwardly direct ed portion 40 which isfixedly attached or bonded, as by welding, to the overlapping portion 22of the ledge 12 of the sink 10. The downwardly directed portion 40 comprises a flanged member having a pair of adjacent flanges 41, 42 whichextend through the counter 20 at a point remote from the opening 21. Theflanges 41, 42 may have a shape similar to the flange 24 described aboveand shown in Figure 3, which flange includes the apertured lower end 26.Between the flanges 41, 42 there is carried a cam 43 which has a shaft44, which may be integral therewith, and which is received within theapertured flanges 41, 42. An end 45 of the shaft 44 is adapted toreceive a driving tool. With a slight spreading of the flanges 41, 42,the cam 43 may be installed or removed; and when installed, a drivingtool may engage the portion 45 of the shaft 44 to rotate the cam means43 whereby the cam 43 adjustably engages the lower surface 16 of thecounter 20.

Referring to Figures 5-7, a downwardly directed portion or flange 50 isshown bonded, as by welding, to a lower surface 52 of a broad ledge 54of a slightly different sink 55 whose bowl portions 56 are received inthe opening 21 of the counter 20. The downwardly directed flange 50extends into the counter 20 through a hole 25 remote from the opening21. The ledge 54 includes a rim portion 57 integral therewith and whichhas a resilient lip 58, integral with the rim portion 57, which isdeformably engageable with the top of the counter 20.

The flange 50 has a hook-shaped end which has an upper or outer convexsurface which is contoured complementarily to the lower or inner concavesurface of the rim portion 57, whereby the rim portion 57 acts toproperly locate the flange 50 with respect thereto at the time that theflange 50 is to be'spot-welded thereto. The main portion of the flange50 is disposed laterally closer to the broad portion of the ledge 54than it is to the lip 58. The hook-shaped end of the flange 50 extendsat 59 to a point intermediate the plane of the under surface 52 of theledge 54 and the outer periphery of the lip 58, whereby the portion ofthe flange 59 may engage the upper surface 18of the counter 20 to limitthe force which may be applied to the weld which secures the flange 50to the sink.

As best seen in Figure 7, the lower portion of the flange 50 is providedwith an aperture 63 which extends transversely therethrough, as well asa slot 64, of a width narrower than the size of the aperture 63, whichcommunicates the aperture 63 with the outer edge of the flange 50. Thusa recess or nest 65 is provided at the power portion of aperture 63.

The fastening means also includes a preassembled cam assembly generallyindicated by the numerals 66 and best seen in Figure 6. The cam assembly66 includes a shaft 67, and a pair of earns 68, 68. Each of thecams 68is provided with an aperture through which In the instant embodiment,the shaft 67 has .a square.

configuration as seen in Figure 7 and extends into a square aperture ineach of the earns 68. The carnaperture is disposed eccentrically of thecam and has a center line which is parallel to the axis of the cam.

After the cams 68 have been disposed on the shaft 67, the ends of theshaft 67 may be peened or upset as indicated at .69, thereby expandingthe size of the end to preclude either of the cams 68 from disengagingthe shaft 67. j

The cam assembly 66 may be slipped laterally through the slot 64 to theaperture 63, and once in position, it may be rotated where it seats inthe nest 65 and engages the undersurface of the counter 16. In apreferred embodiment, such as may be used with a counter top, Ihavefound it advantageous to provide, A clearance when the cams are turnedaway from the counter;20, and a 4;" negative clearance when turnedtoward the counter 20.

By this cam assembly, since the shaft 67 is freeto move axially before astrain is placed on the cams, a turning. tool may be applied to theshaft at any one of four places. Thus a wrench may be applied at theright end of the shaft 67, or it may be applied intermediate the righthand cam 68 and the flange 50. If the parts be oriented axially, thewrench may be applied to the left hand end of the shaft 67 or to a pointintermediate the left hand cam 68 and the flange 50. It is thus apparentthat a good deal of flexibility is available so that the cam assembly 66may be used in all sorts of different locations where obstructions arepresent, and whereby the most conveni-. ent engaging position may beselected forthat particular fastener.

One advantage to this type of fastener is that the lower sides 19 and 52of the broad ledges 12 and 54 as well as the bowl portions 11 and 56,are not engaged by any portion of the fastening mechanism, except forthe weld within the integral rim. Thus excessive tightening does notproduce dimples, deformations, and the like on any portion of the sink,even though the cam assembly may be excessively over-tightened.

Referring to Figure 8, a novel type of self-rimming sink constructed inaccordance with my invention is illustrated. The sink includes a bowlportion 8.0 which extends through the opening 21 in the counter 20. The

sink also has a ledge 81 which is integral with the bowl portion 80 andwhich extends therefrom. More .specifically, the ledge portion 81extends a variable distance from the bowl portion 80 and has a smoothirregular contour or shape. The ledge 81 includes a means 82 for holdingthe sink against the counter 20, the means 82 here illustrated as beingof the type shown in Figure 2. Thus the use of holddown means asdisclosed herein permits the sink to have any irregular contour, withoutcontouring the opening 21 correspondingly.

Referring again to Figure 5, it will be noted that the sink 55 likewiseis provided with its ledge 52 which extends a variable distance from thebowl portions 56. This type of fastener makes it possible for smoothirregular contours or shapes to be utilized. While no fastenerneed beutilized where there is a sharp break in the shape as shown in Figure 8,the fasteners being located close to but not in the curved portion, itis within the contemplation of my invention, as seen in Figure 5, that aflange 71 generally similar to the flange 50 be provided at the curvedportion where a flange is necessary there. This is particularly truewhere the curve is gradual and extends for a considerable distance. Theflange 71 is substantially the same as the flange 50 except that it hasa somewhat shorter length of engagement with the integral rim 57, andthat it is curved from 'a generally flat. plane to have a curve which.is of. substantially the same radius as that of the rim 57 as it goes.about the corner, the axis of such radius being vertical.

1 Referring to Figure 9, a still further modification of my invention isillustrated. This sink includes one or more bowl portions 90 and has abroad ledge 91 extend- Iing therefrom. One side of the ledge 91, forexample,

-2tl. One or both intermediate sides 96 and 97 of the Holding means suchas shown herein, for example, of the type shown in Figures 2 and 3, areincluded at 99iand which extend through the counter 20 at a point remotefrom the opening 95. When each of the holding means 99 has beentightened, the sink is locked in place.

Thus it can be seen that a self-rimming fixture or sink has beenprovided which can be easily installed and where a great deal oflatitude may be taken in sizing the counter opening for the bowl portionof the sink.

Although various modifications may be suggested by those versed in theart, it should be understood that I wish to embody within the scope ofthe patent warranted hereon all such embodiments as reasonably andproperly come within the scope of my contribution to the art.

I claim as my invention:

1. A sink for installation in a counter, having an opening, comprisingin combination: a bowl portion; a ledge integrally extending therefromand having an unobstructed flat lower-side annular portion disposed toflatwise engage the uppermost surface of the counter along an annularmargin thereof adjacent to the opening; a rim portion of generallyinverted U-shaped section integrally joined at one leg of the U to theouter periphery of said ledge; the other leg of the U comprising ayieldably resilient lip extending to a point below the lower surface ofsaid ledge, whereby said lip may provide additional sink support andyieldably conform to the counter top as a seal; and means secured to oneof said ledge and said rim portion in spaced relation to the free edgeof said lip and so constructed and arranged as to extend through thecounter and to engage a lower side thereof for adjustably drawing saidlip against the upper surface of counter.

2. A sink for installation in a counter having an opening, comprising incombination: a bowl portion for extending into the counter opening; abroad ledge integrally extending therefrom in a single plane and havingan irregular peripheral contour, opposite straight portions of which arenon-parallel to each other and which extend a varying distance from saidbowl portion, said ledge having an unobstructed flat lower side annularportion disposed to flatwise engage the uppermost surface of the counteralong an annular margin thereof adjacent to the opening; a rim portionof generally inverted U-shaped section integrally joined at one leg ofthe U to the outer periphery of said ledge; the other leg of the Ucomprising a lip extending to a point below the lower surface of saidledge, whereby said lip may provide additional sink support; and meanssecured to one of said ledge and said rim portion in spaced relation tothe free edge of said lip and so constructed and arranged as to extendthrough the counter and to engage a lower side thereof for adjustablydrawing said lip against the upper surface of counter.

-3. 'In a sink supported by a counter, said sink having an integralledge, a portion of said ledge having an unobstructed annular lower sideportion flatwise overlaying the uppermost surface of a counter, theimprovement comprising: means welded to the lower side of saidcounter-overlaying ledge portion and extending through a hole in thecounter provided solely for said means; and second means removablysupported by said first means beneath the counter, and clampinglyengaging the lower side of the counter.

4. In combination with a sink having an integral ledge at leastpartially overlapping and supported by the uppermost surface of acounter, the improvement comprising: means acting on the lower side ofthe counteroverlapping and engaging portion of said sink ledge forholding and sealing said ledge against the counter, said means includingpressure-sensitive tape having adhesive on both sides thereof in directengagement with the top of the counter and with the lower side of saidsink ledge.

5. In combination with a counter fixture having a main portion and aledge integral therewith, the ledge having an unobstructed flatlower-side annular portion disposed to at least partially overlap theuppermost surface of a counter, the improvement comprising: a flangewelded to said lower side portion of the ledge within an area whichprospectively overlaps the counter, said flange being downwardlydirected for extending through and below the counter; said flange havingan aperture, the axis of which is located for extending below andparallel to the counter; and a cam-and-shaft assembly, the shaft thereofbeing journalled in said aperture, and the cam thereof being shaped foradjustably engaging the lower side of the counter in response torotation of the shaft to draw and hold the integral fixture ledgeagainst the upper surface of the counter, said assembly freely removablefrom said flange.

6. In combination with a counter fixture having amain portion and aledge integral therewith, the ledge having an unobstructed flatlower-side annular portion disposed to at least partially overlap theuppermost surface of a counter, said improvement comprising: a flangewelded to the lower side portion of the ledge within an area whichprospectively overlaps the counter, said flange being downwardlydirected for extending through and below the counter; said flange havingan aperture, the axis of which is located for extending below andparallel to the counter; a shaft journalled in said aperture; and cammeans corotatably carried by said shaft and slidable therealong in anaxial direction, said cam means being shaped for selectably engaging anddisengaging the lower side of the counter in response to rotation of theshaft, and thereby draw and hold the integral fixture ledge against theupper surface of the counter.

7. In combination with a counter fixture having a main portion and aledge integral therewith, the ledge having an unobstructed flatlower-side annular portion disposed to at least partially overlap theuppermost surface of a counter, the improvement comprising: a flangewelded to the lower side portion of the ledge within an area whichprospectively overlaps the counter, said flange being downwardlydirected for extending through and below the counter; said flange havingan aperture, the axis of which is located for extending below andparallel to the counter; a shaft journalled in said aperture and havinga pair of spaced parallel longitudinal surfaces for receiving a drivingtool; a pair of cams corotatably secured to said shaft to be rotatedtherewith, at least one of said cams being axially slidable along saidshaft; and means on said shaft holding said slidable cam thereon; saidcams each being shaped for engaging and disengaging the lower side ofthe counter in response to rotation of the shaft, and thereby draw andhold the integral fixture ledge against the upper surface of thecounter.

8. A method for assemblying a sink, having a bowl and peripherallydisposed sink-fastening means, to a cqun- 8 ter comprising only thesteps of cutting an opening in the counter for receiving the bowl;cutting a plurality of holes in the counter spaced from said opening forreceiving said sink-fastening means; positioning said sink on thehighest surface of the counter with only its bowl portion in the openingand its fastening means extending through the holes; and locking thesink in place by drawing down on the fastening means with respect to thelower surface of the counter.

9. In combination with a fixture rim having a generally invertedU-shaped section, one leg of which is secured to the outer periphery ofa fixture ledge and the other leg of which prospectively engages acounter, the improvement comprising: a flange having an upper endportion secured to the interior of the U-shaped section of the rim, saidflange prospectively extending through the counter remotely from theledge; said flange having an aperture, the axis of which is located forextending parallel to the counter, and on the side thereof opposite tothe rim; a shaft journalled in said aperture and radially spaced fromsaid side of the counter; and a pair of cams corotatably and axiallyslidably carried by said shaft, said cams each being shaped forselectably engaging and disengaging the lower side of the counter inresponse to rotation of said shaft for drawing the fixture ledge againstthe counter.

10. In combination with a sink having a bowl portion and a ledgeintegral therewith, the ledge having an unobstructed flat lower-sideannular portion disposed to at least partially overlap the uppermostsurface of a counter, and a rim having a generally U-shaped section, oneleg of which is integral with the outer periphery of the ledge, and theother leg of which extends below the lower surface of the ledge, theimprovement comprising: a flange having an upper U-shaped end portioncomplemental to the interior of the U-shaped section and welded thereto,said flange prospectively extending through and below the counter,terminating remotely from said upper end portion; said flange having anaperture, the axis of which is located for extending below and parallelto the counter; a shaft journalled in said aperture and having at leastone pair of radially spaced flat surfaces for receiving a driving tool;pair of cams corotatably secured to said shaft to be rotated therewith,at least one of said cams being axially slidable along said shaft; andmeans on said shaft holding each of said slidable cams thereon, at leastone of said holding means being detachably secured to said shaft; saidcams each being shaped for engaging and disengaging the lower side ofthe counter in response to rotation of the shaft, and thereby draw andhold the integral sink ledge against the uppermost surface of thecounter.

' 11. In combination with a sink having a bowl portion and a ledgeintegral therewith, the ledge having an unobstructed flat lower-sideannular portion disposed to at least partially overlap the uppermostsurface of a counter, and a rim having a generally U-shaped section, oneleg of which is integral with the outer periphery of the ledge, and theother leg of which has a length extending below the lower surface of theledge, the improvement comprising: a flange having a U-shaped upper endportion complemental to the interior of the U-shaped section andweldedthereto, said flange prospectively extending through and below thecounter, terminating remotely from said upper end portion, said flangehaving an aperture, the axis of which is located for extending below andparallel to the counter; a shaft journalled in said aperture and havingat least one pair of radially spaced flat surfaces for receiving adriving tool; and a pair of cams corotatably secured to said shaft to berotated therewith, both of said cams being axially slidable along saidshaft; said shaft having deformed ends operative to hold each of saidcams thereon; said flange having a slot extending from said aperture toa generally vertical edge of said flange through which said cams andsaid shaft may be removed and installed as a unit.

12. In combination with a fixture rim having a generally invertedU-shaped section, one leg of which is secured to the outer periphery ofa fixture ledge and the other leg of which prospectively engages acounter, the improvement comprising: a flange having an upper endportion secured to the interior of the U-shaped section of the rims,said flange prospectively extending through the counter remotely fromthe ledge; said flange having an aperture, the axis of which is locatedfor extending parallel to the counter, and on the side thereof oppositeto the rim; a shaft journalled in said aperture and radially spaced fromsaid side of the counter; and a pair of cams corotatably and axiallyslidably carried by said shaft, said cams each being shaped forselectably engaging and disengaging the lower side of the counter inresponse to 15 2,817,097

References Cited in the file of this patent UNITED STATES PATENTS524,477 Biddle Aug. 14, 1894 2,505,828 Fox May 2, 1950 2,584,581 HarrisFeb. 5, 1952 2,665,430 Ross et al. Jan. 12, 1954 2,717,397 Ross Sept.13, 1955 Henley Dec. 24, 1957

